Automatic
Key Takeaway
Automatic is classified as low hazard in Maine. It was completed in 1924 and is 102 years old. Its primary use is hydroelectric.
Physical Details
| Dam Height | 33 ft (taller than 90.6% in ME) |
| Dam Length | 81 ft |
| Dam Type | Concrete |
| Max Storage | 900 acre-ft |
| Normal Storage | 900 acre-ft |
| Surface Area | 68 acres |
| Drainage Area | 205 sq mi |
| Max Discharge | 1,910 cfs |
| Year Completed | 1924 (102 years old) |
| NID ID | ME00103 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Essex Hydro Associates, LLC
Private
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High Hazard 14 ftFrequently Asked Questions
What is the hazard classification of Automatic?
Automatic is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Automatic?
Automatic is owned by Essex Hydro Associates, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Automatic built?
Automatic was completed in 1924, making it 102 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Automatic?
Automatic serves the following purposes: Hydroelectric, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Automatic?
Automatic has a dam height of 33 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Automatic last inspected?
Automatic was last inspected on September 29, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.